2013 AM-FPD, Kyoto, Japan

2013 AM-FPD, Kyoto, Japan

July 2-5, 2013 (Tuesday - Friday), Ryukoku Universiti Avanti Kyoto Hall

 

 

 

<Poster Session : P4>

A Novel a-InGaZnO TFT Based Voltage Programmed Pixel Circuit to Compensate Threshold Voltage and Mobility Variations

Yongchan Kim, Jerzy Kanicki, and Hojin Lee

Abstract

In this paper, we proposed a novel voltage-programmed pixel circuit based on amorphous indium gallium zinc oxide thin-film transistor (a-InGaZnO TFT) for active-matrix organic light-emitting display (AMOLED) with an enhanced electrical stability and uniformity. Through an extensive simulation work based on a-InGaZnO TFT and OLED experimental data, we confirm that the proposed pixel circuit can compensate for both mobility variation and threshold voltage shift of the driving TFT.